Inside Josh’s Supercharged LS3 Allied Fab Bomber

AS SEEN IN OUR JULY/AUGUST 2026 ISSUE – Buy Now!

Purpose-Built To Get It Done

It’s never a dull moment when it comes to building a rig of maximum capability that is able to turn heads at every corner. With that being said, I’d like for you guys to meet Josh! Josh is a badass who likes to party and look good while doing so. Here, we are going to dive into the details behind this rig and everything it’s been set out to do, and more!

When Josh picked up this chassis from a friend, it was nothing more than a stalled project. What started as a half-finished idea quickly turned into a blank canvas for something far more ambitious: a no-compromise bomber built to be as capable in the dirt as it is impressive on paper. The truck was brought to Allied Fab with one simple goal—build the coolest bomber possible. The project quickly took on a life of its own. At the heart of the build is a Bomber Fab chassis centered around serious hardware front to back. Up front, a Spidertrax 4130 3.5-inch housing is matched with a set of Spidertrax Ultimate Knuckles, a Tubeworks high-pinion third member with 5.43 gears and a spool, 40-spline 300M Spidertrax axles, Spidertrax unit bearings, and 6-piston Wilwood brakes. The rear follows the same recipe, with a Spidertrax 4130 3.5-inch housing, a Tubeworks high-pinion center section, 5.43 gears, a spool, 40-spline 300M axles, Spidertrax unit bearings, and 6-piston Wilwoods. It’s the kind of axle setup built for abuse, control, and confidence when the terrain gets ugly.

Power comes from an LS3 that has been massaged for the job with ported heads, a BTR cam, and a Magnuson supercharger. Exhaust exits through 1 7/8-inch polished 304 headers and a 4-inch exhaust system feeding a Borla muffler. All of those components are managed by a Holley ECU. Behind the engine sits a Maximum 4L80 transmission with a Reid case and a 2,500-stall converter, backed by an Atlas 3.0 transfer case to put the power where it belongs.

The suspension package is every bit as serious as the driveline. Up front, the truck rides on a single triangulated 4-link with 2.0×14 King Race Series coilovers, 3.0×14 King Race Series bypasses, and a Currie sway bar. Out back, another single triangulated 4-link with trailing arms works alongside 2.0×14 King coilovers, 3.0×16 King bypasses, a 2.0×2 King bump stop, and a Branik sway bar with Allied arms. It’s a setup designed to settle the chassis in the rough while keeping the tires planted and the handling predictable. Rolling on 17-inch Walker Evans beadlocks wrapped in 40-inch BFG KR3s, the bomber has the stance and footprint to match its hardware.

Inside, the cockpit was built with the same attention to detail, featuring a Holley dash, dual Garmin GPS units, Cerakoted aluminum floor pans and dash, Sparco seats with custom upholstery, Allied-built shifters, a PCI radio and intercom system, Starlink, and Switch-Pros controls. The truck is also loaded with the kind of race-ready and trail-friendly extras that separate a cool build from a truly complete one.

A Warn 9.5xp front winch, a narrowed Warn 9,000 rear winch, a CBR radiator and transmission cooler, a JAZ 32-gallon fuel cell, and Vision X lighting round out a package that is clearly meant to go far and go hard. According to Josh, the project changed dramatically during the build. The rear section of the chassis was cut off to create room for storage and to make space for the rear winch, which is a move that reflects the whole attitude behind this machine. It’s practical where it needs to be but built without compromise. This is not just another bomber. It is a purpose-built off-road machine with race-bred components, smart packaging, and enough horsepower and hardware to make almost any terrain feel too small. If the first round of photos is any indication, the next few details will only improve the story.

But what really separates this build from the rest isn’t just the parts list — it’s the level of fabrication and thought put into every inch of the chassis. From the start, Allied Fab approached the project knowing major changes would be needed to make everything work the way they envisioned. The front of the chassis was reworked to accommodate the Magnuson supercharger and custom headers, along with a fully custom removable engine bar and front winch mount designed in-house. Out back, the fabrication continues with custom rear shock mounts, radiator mounts, fuel cell mounts, and even the rear wing—all purpose-built to match the truck’s aggressive performance goals. Storage and functionality were clearly top priorities. The rear of the chassis was redesigned to house essential gear, including the rear winch, battery, fluids, and even spare components like an alternator and starter. It’s the kind of setup that speaks to real-world off-road use—built not just to perform, but to survive long days in harsh terrain.

Details like the rear bumper show just how far the team went. The tubing is slugged with anodized aluminum that’s visible through the slotted design, giving it a clean, high-end look while maintaining strength. That same attention carries over to the custom aluminum light bar, which has also been anodized to match the rest of the build. Cooling was another area that didn’t get overlooked. To support the supercharged LS3, the truck runs dual heat exchangers—one cleverly mounted in the passenger footwell with ducted airflow in and out, and another positioned below the radiator. It’s a smart solution that ensures consistent performance even under heavy load and extreme temperatures. Underneath, the protection package is just as dialed. Skid plates are built from .120-inch aluminum and layered with ¾-inch UHMW, giving the chassis a smooth, durable surface that can take serious abuse while sliding over rocks and obstacles.

Visually, the finish of the truck ties everything together. Every aluminum component has been anodized—a signature touch on Allied builds—while the coils, links, and body panels have all been powdercoated for durability and a clean, cohesive look. It’s the kind of finish that holds up to punishment while still turning heads in the pits. We can spend all day talking about this beauty, but we have other builds in this issue by Allied Fab that we are dying for you to see. We thank Josh for allowing us to capture his all-out bomber/Allied Fab car and its amazing capabilities! Until the next one, Tread on!